:root {
  color-scheme: light;
  --page: #f9f9f7;
  --surface: #fcfcfb;
  --surface-2: #f3f2ee;
  --ink: #0b0b0b;
  --ink-2: #52514e;
  --muted: #898781;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --series-1: #2a78d6;
  --series-2: #eb6834;
  --good: #0ca30c;
  --good-ink: #006300;
  --warning: #fab219;
  --serious: #ec835a;
  --critical: #d03b3b;
  --accent: #2a78d6;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.04);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --page: #0d0d0d;
    --surface: #1a1a19;
    --surface-2: #232321;
    --ink: #ffffff;
    --ink-2: #c3c2b7;
    --muted: #898781;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --series-1: #3987e5;
    --series-2: #d95926;
    --good-ink: #0ca30c;
    --accent: #3987e5;
    --shadow: none;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--page);
  color: var(--ink);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
}
h1, h2 { margin: 0; font-weight: 650; letter-spacing: -0.01em; }
h1 { font-size: 17px; }
h2 { font-size: 14px; }
.muted { color: var(--muted); margin: 0; }
.small { font-size: 12px; }
button { font: inherit; cursor: pointer; }

/* Marka */
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px; flex: none;
  background: linear-gradient(135deg, var(--series-1), var(--series-2));
  position: relative;
}
.brand-mark::after {
  content: ""; position: absolute; left: 7px; right: 7px; top: 15px; height: 4px;
  border-radius: 2px; background: rgba(255, 255, 255, 0.9);
}

/* Pasek górny */
.topbar {
  position: sticky; top: 0; z-index: 5;
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 12px max(16px, calc((100vw - 1240px) / 2));
  background: color-mix(in srgb, var(--page) 85%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.topbar-right { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.topbar form { margin: 0; }
.ghost {
  background: transparent; color: var(--ink-2); border: 1px solid var(--border);
  border-radius: 8px; padding: 6px 12px;
}
.ghost:hover { background: var(--surface-2); }

/* Status */
.pill {
  display: inline-flex; align-items: center; gap: 8px; padding: 5px 12px; border-radius: 999px;
  font-weight: 600; font-size: 13px; border: 1px solid var(--border); background: var(--surface);
}
.pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.pill-busy .dot { background: var(--good); box-shadow: 0 0 0 0 var(--good); animation: pulse 1.4s infinite; }
.pill-error .dot { background: var(--critical); }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--good) 60%, transparent); }
  100% { box-shadow: 0 0 0 8px transparent; }
}
@media (prefers-reduced-motion: reduce) { .pill-busy .dot { animation: none; } }

/* Układ */
.wrap { max-width: 1240px; margin: 0 auto; padding: 20px 16px 48px; display: grid; gap: 16px; }
.grid-2 { display: grid; gap: 16px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; } }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px; box-shadow: var(--shadow); min-width: 0;
}
.card-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }

.banner { margin: 0; padding: 10px 14px; border-radius: 10px; font-weight: 500; }
.banner-error { background: color-mix(in srgb, var(--critical) 12%, var(--surface)); border: 1px solid color-mix(in srgb, var(--critical) 40%, transparent); }

/* Przełącznik okresu */
.segmented { display: inline-flex; background: var(--surface-2); border-radius: 9px; padding: 3px; gap: 2px; flex-wrap: wrap; }
.segmented button {
  border: 0; background: transparent; color: var(--ink-2); padding: 5px 11px; border-radius: 7px; font-size: 13px;
}
.segmented button[aria-selected="true"] { background: var(--surface); color: var(--ink); font-weight: 600; box-shadow: 0 1px 2px rgba(0,0,0,.08); }

/* Kafelki */
.tiles { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(135px, 1fr)); }
.tile { background: var(--surface-2); border-radius: 11px; padding: 12px 14px; min-width: 0; }
.tile .label { color: var(--ink-2); font-size: 12px; }
.tile .value { font-size: 24px; font-weight: 650; letter-spacing: -0.02em; margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tile .sub { color: var(--muted); font-size: 12px; margin-top: 2px; }

/* Na żywo */
.live-empty { color: var(--ink-2); padding: 14px 0 6px; }
.live-item {
  display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center;
  padding: 10px 12px; border-radius: 10px; background: var(--surface-2); margin-bottom: 8px;
}
.live-item .spinner {
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid color-mix(in srgb, var(--good) 30%, transparent); border-top-color: var(--good);
  animation: spin .9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .live-item .spinner { animation: none; } }
.live-item .elapsed { font-variant-numeric: tabular-nums; font-weight: 600; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px 16px; margin: 14px 0 0; }
.facts div { min-width: 0; }
.facts dt { color: var(--muted); font-size: 12px; }
.facts dd { margin: 0; font-weight: 550; overflow-wrap: anywhere; }

/* Limity */
.limit { margin-bottom: 14px; }
.limit-row { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 6px; }
.limit-name { font-weight: 600; }
.bar { height: 10px; border-radius: 5px; background: var(--surface-2); overflow: hidden; }
.bar > span { display: block; height: 100%; border-radius: 5px; background: var(--series-1); }
.bar.warn > span { background: var(--warning); }
.bar.crit > span { background: var(--critical); }
.limit-meta { color: var(--muted); font-size: 12px; margin-top: 4px; }
.status-tag { font-size: 12px; font-weight: 600; display: inline-flex; gap: 4px; align-items: center; }
.status-tag.ok { color: var(--good-ink); }
.status-tag.warn { color: var(--ink); }
.status-tag.crit { color: var(--critical); }

/* Wpływ na limity */
h3 { font-size: 13px; font-weight: 600; margin: 0 0 10px; color: var(--ink-2); }
.impact { display: grid; gap: 16px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 900px) { .impact { grid-template-columns: 1fr; } }
.impact-win { background: var(--surface-2); border-radius: 11px; padding: 14px 16px; min-width: 0; }
.impact-win .limit-row { align-items: baseline; }
.impact-win .big { font-size: 26px; font-weight: 650; letter-spacing: -0.02em; }
.stackbar { display: flex; gap: 2px; height: 12px; border-radius: 6px; overflow: hidden; background: var(--surface); margin: 8px 0 6px; }
.stackbar > span { display: block; height: 100%; }
.stackbar .seg-bridge { background: var(--series-2); }
.stackbar .seg-rest { background: var(--series-1); }
.stackbar .seg-guard { flex: none; }
.impact-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px 14px; margin: 10px 0 0; }
.impact-facts div { min-width: 0; }
.impact-facts dt { color: var(--muted); font-size: 12px; }
.impact-facts dd { margin: 0; font-weight: 600; font-variant-numeric: tabular-nums; }
.impact-lower { margin-top: 18px; }
.impact-lower > div { min-width: 0; }
.guard-note { margin-top: 8px; font-size: 12px; color: var(--ink-2); }
.explain { margin-top: 16px; border-top: 1px solid var(--grid); padding-top: 12px; }
.explain summary { cursor: pointer; font-weight: 600; color: var(--accent); }
.explain-body { color: var(--ink-2); max-width: 900px; }
.explain-body p { margin: 10px 0; }
.explain-body strong { color: var(--ink); }
code { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: 12px; background: var(--surface-2); padding: 1px 5px; border-radius: 5px; }
.chart .line { fill: none; stroke: var(--series-1); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .area { fill: var(--series-1); opacity: .10; }
.chart .mark { stroke: var(--series-2); stroke-width: 2; }
.chart .dot { fill: var(--series-1); stroke: var(--surface); stroke-width: 2; }
.chart .guard-line { stroke: var(--critical); stroke-width: 1; stroke-dasharray: 4 3; }

/* Wykresy */
.chart { position: relative; height: 200px; }
.chart svg { display: block; width: 100%; height: 100%; overflow: visible; }
.chart .gridline { stroke: var(--grid); stroke-width: 1; }
.chart .baseline { stroke: var(--axis); stroke-width: 1; }
.chart .tick { fill: var(--muted); font-size: 11px; font-variant-numeric: tabular-nums; }
.chart .s1 { fill: var(--series-1); }
.chart .s2 { fill: var(--series-2); }
.chart .hit { fill: transparent; }
.chart .col-hl { fill: transparent; }
.chart .hit:hover + .col-hl { fill: var(--ink); opacity: .05; }
.chart-empty { display: grid; place-items: center; height: 100%; color: var(--muted); }
.legend { display: flex; gap: 14px; color: var(--ink-2); font-size: 12px; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.sw { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }
.sw-1 { background: var(--series-1); }
.sw-2 { background: var(--series-2); }

.tooltip {
  position: fixed; z-index: 20; pointer-events: none;
  background: var(--surface); color: var(--ink); border: 1px solid var(--border);
  border-radius: 10px; padding: 8px 10px; font-size: 12px; box-shadow: 0 6px 24px rgba(0,0,0,.14);
  min-width: 140px;
}
.tooltip .t-title { font-weight: 650; margin-bottom: 4px; }
.tooltip .t-row { display: flex; justify-content: space-between; gap: 14px; }
.tooltip .t-row span:first-child { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-2); }
.tooltip .t-row span:last-child { font-variant-numeric: tabular-nums; font-weight: 600; }

/* Tabele */
.table-wrap { overflow-x: auto; margin: 0 -4px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; color: var(--muted); font-weight: 550; font-size: 12px; padding: 6px 8px; border-bottom: 1px solid var(--grid); white-space: nowrap; }
td { padding: 7px 8px; border-bottom: 1px solid var(--grid); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td.err { color: var(--ink-2); white-space: normal; min-width: 180px; max-width: 420px; font-size: 12px; }
.code { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: 12px; }
.badge {
  display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600;
  background: var(--surface-2); color: var(--ink-2);
}
.badge.ok { color: var(--good-ink); background: color-mix(in srgb, var(--good) 14%, transparent); }
.badge.warn { color: var(--ink); background: color-mix(in srgb, var(--warning) 28%, transparent); }
.badge.crit { color: var(--critical); background: color-mix(in srgb, var(--critical) 14%, transparent); }
.empty-row td { color: var(--muted); text-align: center; padding: 16px; }

/* Logowanie */
.login-body { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-card {
  width: 100%; max-width: 360px; background: var(--surface); border: 1px solid var(--border);
  border-radius: 18px; padding: 28px 26px; box-shadow: var(--shadow);
}
.login-card .brand { margin-bottom: 22px; }
.login-card form { display: grid; gap: 6px; }
.login-card label { font-size: 13px; color: var(--ink-2); margin-top: 8px; }
.login-card input {
  font: inherit; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--page); color: var(--ink);
}
.login-card input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.login-card button[type="submit"] {
  margin-top: 16px; padding: 10px 12px; border: 0; border-radius: 10px;
  background: var(--accent); color: #fff; font-weight: 600;
}
.login-card button[type="submit"]:hover { filter: brightness(1.07); }
.error {
  margin: 0 0 8px; padding: 9px 12px; border-radius: 10px; font-size: 13px;
  background: color-mix(in srgb, var(--critical) 12%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--critical) 35%, transparent);
}